Port Knocking with knockd and Linux - Server Hardening

https://ittavern.com/port-knocking-with-knockd-and-linux/

I've created a new article about Port Knocking in preparation of my rework of the SSH Hardening guide.

I'd like to hear your opinion about port knocking.

4 points · 2 comments · view on lemmy.world

2 Comments

0xD@infosec.pub · 2 pts · 2y (1 reply)

It's certainly a good way to hide a service from family/friends/flatmates but cannot be relied on for security on its own. Especially for SSH I see no real security benefit for it over just public key authentication, and the stated added complexity just makes it impractical in most cases.

I really cannot see a scenario (risk management-wise) where it is more than just a thing you set up for fun.

wop@infosec.pub · 2 pts · 2y

public key authentication ... is king.

I agree that port knocking won't replace any other hardening method, but I thought I'd look into it since it gets recommended so often. Not a big fan either.